Frank l



No. 607,728. Patented my I9, |398.

F. L. BARNICK. ROLLER SPRING HINGE. (Appl-icarton led Feb. 24, 1898.) (No Model.)

ATTORNEYS.

WITNESSES:

l ArtNr Fries.

FRANK L. BARNICK, or Nnw YORK, N. Y.

ROLLER SPRING-HINGE.`

SPECIFICATION forming part of Letters Patent No, 607,728,date4d July J19, 11898. Application iiled February 24, 1898. Serial No. 671,488. (No model.)

To @ZZ whom it may concern,.-

Be it known that I, FRANK L. BARNIcK, a citizen of the United States, residing at New York, in the county and State of New York, have invented new and useful Improvements in Roller Spring-Hinges, of which the following is a specification.

` This invention relates to a hinge whichl is readily applied and reliable in operation; and the invention resides in the novel features of construction set forth in the' following specification and claims and illustrated in the annexed drawings, in which- Figure 1 is a sectional view of the hinge applied to a door, the latter being closed. Fig. 2 is a section along o: Fig.` 1. Fig. 3 is a section along y y, Fig.A 1. Fig. 4 is a view like Fig.,3, the door being open. Fig. 5 is an inverted plan view ofthe bracket.

`Against an angle'ory outer part of a door 1 sits abracket or angle-piece 2 3. Said bracket or its branch?) is provided with suitably-'jour naled rollers or casters 4, made to project outside of or below the bracket. Theserollers travel on ridges or cam-surfaces 5. l-These faces 5 extend from or form part of a head or plate 6, having stem 7 extended through the perforated box-bottom 8. The side or body of the box is shown at 9 and its top at 10.

The-box-top 10 is suitably cut orbroken for the cam-faces 5 to project or vpass through, and these cam-faces, as seen vin Figs. 8 and 4, are suitably spaced or separated. When the door opens, Fig. 4, the rollers 4 travel towardV the high parts or apexes of the cams, and when the door is shut, Fig. 3, said rollers rest on or pass to the low parts of thecams or into the spaces between the low parts of said camsurfaces onto the box-top 10.

The bottom 8 is adjustable orheld by screws 11, housed in lateralV extensions or chamber portions of the box 9. Placed about the stemV 7 and between the` bottom 8 and cam or head 6 is a rubber tube 12. As the door opens, the rollers 4, pressing or running onto the high parts of cams 5, compress a spring composed of an elastic tube 12, and such pressure on the release of-the door tends to close the latter and to raise or return the cam-faces 5.

supported on bottom 8,'can be lowered as re-` quired.

The roller-bracket has a pivot 14, and the cams 5v or their head 6 is provided with a suitable'seat 'forthe reception or swi'velmof this pivot.

The bracket 2 3 is readily applied or the door 1 can be readily slipped into place on said bracket and secured by screws or fastenings 15, Fig. 1, the door having been recessed or cut or prepared for theV seating or reception of bracket member 3. 'Vhen the door is shut, the rollers 4restingonl box-bot toin 10 and in the spaces between cams 5, the door is held shut'against the wind or accidental opening. l

As seen in Fig. 4, the door can be prevented from excessive swing oropening bya stop or pins 16, rising from' box-bottom 10. The bracket having a shoulder 17 suitably applied, such shoulder, engaging or being arrested by one or another of stop-pins 16, will limit theswing or ,opening of the door in either direction. The' rubber tube 12 has been foundpreferable to a metallic spring, as this tube can be made very short and still be eifective, so' as to require but a shallow box. As the door opens its weight will press the cams 5 into the box or compress the tube 12, which latter is iitted close about pin 7.

The box-body 9, as also the lateral extensions for the screws 11 `when made of cylindrical form, can be readily seated or housed, since cylindrical holes or seats are readily bored for sinking or housing the box in place. Above the level of box-top 10 the box is provided Vwith a laterally-extended lplate 18, which when the parts are in working position, as seen in Fig. 2, can be made to carry the weight of the box, such plate 18 being sunk to the level of the floor or door-sill. The screws 11, being exposed through plate 18 at each side of door 1, are readily accessible for the required adjustment of bottom 8. The pivot 14 guides the door in connection with pivot 19, Fig. 1, which when made convex or like a ball-bearing in connection with its seat 20, works easily or with little friction.

In Fig. 1 the yielding cams 5 are shown ap- IOO plied at the bottom ofv the door but if seen t they could be applied at the top-as, for example, when the floor is marble, iron, or

ing through an opening in the top of thebox, f

substantially as described.

2. A roller spring hinge, comprising a i bracket secured at the inner corner .of the door, rollers journaled in said bracket, a `box f seated in the door-sill, a plu-nger working in said box and having cam-surfaces projecting through the top thereof and on which said rollers travel, a spring located' under the plunger and acting to press it upward, stops or pins projecting fromv the ltop of said box and a shoulder on the bracket adapted to contact with said stops or pins to limit the swing of the door in either direction, substantially as described. 1

3. A roller spring hinge comprising a bracket secured at the inner corner of the door, 'rollers journaledin said bracket, abox seated in the door-sill, a plunger working in said box and havinga head provided with camsurfaces projecting through the top thereof and-on which said rollers travel, and a spring interposed between said plunger-head and the bottom of the box and encircling the stem of the plunger, substantially as described.

4. A .roller spring hinge comprising a bracket secured at the inner corner of the door, rollers journaled in said bracket, a `box seated in the door-sill having `a movable bottom, a plunger working in said box and having a head provided with cam-surfaces proj ectiug through the top thereof, and on which said rollers travel, and a stem working in an opening in the bottom of the box, a spring interposed between the plunger-head and the bottom of the box and encircling the stem of th'e plunger, and means for adjusting the height of the bottom of the box to vary the compression of said spring, substantially as described.

5. A roller spring hinge comprising a bracket secured at the inner corner of the door, rollers journaled in said bracket, a box seated in the door-sill having an adjustable apertured bottom and an apertured top, a plunger working in said box and having a head provided with cam-surfaces projecting through the topl thereof and on which said rollers travel anda stem working in the aperture in the bottom of the box, a spring interposed between the plunger-head and the bottom of the box, a pivot-pin projecting from said bracket and working in the aperture in the top of the box, and `a 'seat formed in the plunger-head to receive the lower end of said pivot-pin, substantially as described.

6. A roller spring hinge comprising a bracket secured at the inner corner of the door, rollers journaled in said bracket, a box seated in the sill having an adjustable bottom and provided with lateral chamber portions and having a laterally-extended plate above the level of the top, screws extended through said plate and housed in said chamber portions and supporting the bottom of the box, and a plunger yieldingly supported on said bottom and having cam-surfaces projecting through the top of the box and on which said rollers travel, substantially as described.

In testimony whereof I have hereunto s et my hand in the presence of two subscribing witnesses.

FRANK L. BARNICK. 

